Calendar



sept. 5, 1933. H. F. SHEDD 1,925,465

CALENDAR Filed June 17, 1932 Bnventor W L omm Patented Sept. 5, 1933 UNITED STATES PATENT OFFICE 8 Claims.

This :Invention is directed to an improvement in calendars and like articles, wherein the calendar or selected matter is arranged in book form and wherein an important and desirable characteristic is that when opened in any one posiion the adjacent leaves of the book present a substantially flat surface.

In Calendars and like articles, where the calendarV material is in book form, the leaves of endar data from day to day, week to Week or month to month, as the case may be, it is important that at any particular open position the exposed leaves be presented in substantially the same plane, i. e. the adjacent leaves open flat as distinguished from the inwardly curved meeting edges of adjacent leaves in the ordinary type of book binding. The flat opening characteristic is important, for thereby the full surface of each leaf is clearly presented to the eye'of the observer, permitting the calendar or other data to be printed substantially to the inner edge of the leaf, and further permitting, if necessary, the printing of the calendar data on two simultaneously exposed leaves, necessitating their relatively flat relation for proper Visualizing of this data.

In carrying out the invention, and in order to permit a complete flat opening of the book, it is first necessary that the respective leaves of the book be appropriately bound to permit an unrestricted flat opening of the leaves at any point in the book, but it is at once apparent, particularly in connection with Calendars and the like, that if the book as a Whole is not properly secured to or correlated with the backing on Which the book is supported in calendar form, there Will be an appreciable binding of certain of the book leaves and the connection between the book and backing which would tend to prevent a flat open- 40 ing of the book at certain points, and thus when the book Was opened at these points, the absolutely fiat desired relation of the opened leaves Would not be attained.

Furthermore, it is desirable in calendar manufacture that the backing be more or less permanent and that the calendar book per se be substituted at recurring periods by other calendar books indicating a continuation of the calendar data.` That is to say, if the book represents calendar 50 data for a particular year, it is desirable that following the expiration of the year, the calendar as a whole be again made useful With the original backing by substituting'for the book thereon a second book bearing calendar data for a succeed- 55 ing year. bObviously, the connections by which which are successively turned to present the calthe book is attached to the backing must be such as Will readily permit the interchange of books and the capabilities of compensating for the opening of the calendar in flat condition must be provided as a means remainingeither with the calendar backing or with the attachment betweenthe backing and calendar book in order that each successive book may readily open flat at any point without the requisite of particular adjustment or specically adapted securing means.

The essential and primary object of the present invention, therefore, is the provision of a calendar in which the calendar data is arranged in book form and in which the backing on Which the book is secured is inherently provided to compensate for the varying thicknesses of the bookon either side of the fold line as the leaves are turned, this Compensation permitting a Shifting of the center line of folding in accordance with the thickness of the leaves on one side of the other of such line to thereby maintain the line of fold substantially at the line of opening irrespective of the thickness of leaves on one side or' the other of such line. With this compensation, if the leaves of the book are bound so as to permit the book wholly regardless of any backing to open flat, then such book when attached to the backing will open flat wholly regardless of the thickness of leaves on one side or the other of such opening.

The invention is illustrated in the accompanying drawing, whereinz- Figure 1 is a broken perspective view showing a book calendar connected to a backing in accordance with the present invention.

Figure 2 is a transverse section on the line 2-2 of Figure l, the book being shown fully open.

Figure 3 is a broken plan of the backing constructed in accordance with the present invention.

Figure 4 is a perspective view showing a modified form.

The calendar of the present invention is here illustrated merely for convenience and made up of a backing l and a book form calendar 2. The backing 1 is, of course, to be constructed in any form or shape desired, aside from the specific details hereinafter pointed out, and the book calendar is preferably to be constructed to permit a relatively flat opening of the respective leaves at any point. The invention is not particularly concerned with the character of the binding of the book calendar in order to permit this flat opening of leaves of the book per se, though for convenience in illustration it mav 'Je stated that the backing.

it is preferred that the calendar book be constructed in accordance With the pending application of H. E. Shedd, filed February 16, 1931, Serial #516,133, wherein the book is made up of Sheets folded to present leaves and superimposed in book form, one leaf of each sheet having a tab cut therefroin and secured to the adjacent leaf of the next superimposed sheet. In this way, opening of the sheets to expose the surface of any two connected or adjacent leaves presents the line of opening always in the line of fold of the particular leaf, with this line of fold shift- .ing in accordance with the opening of the leaves 'data may be printed on a particular surface on one sheet, this data being printed on the full inner surface of the sheet, i. e. on two adiacent leaves, so that when the book is opened, the exposed data occupies both expose-:l leaves, thus Vrendering it highly important that the leaves open flat.

The opposite or rear su'face of each sheet, cooperating as it does when the book is opened with the rear surface of the adjacent sheet, may be separateiy printed with any desired data such, for example, as record areas, detailed information of value to the user of the calendar, or for any other purpose.

For the purpose of the present invention, therefore, it will be assumed that the book per se is made up of independent leaves and that these leaves are so correlated as to insure a fiat opening of any two leaves of one sheet or of any two adjacent sheets in the of the calendar book. It is tobe repeated that the detailed structure by which this result is accomplished is not important so far as the present invention is concerned, and reference to the prior application as above given is merely to indicate one desirable and completely operative means for interbinding the leaves in making up the book calendar.

As stated, it is desirable that the backing be made useful for succeeding calendar books,

under which circumstances means must be pro-y vided by which the book calendar is secured to Obviously, this means must be such as to permit the ready and convenient substltution of successive book calendars, and it is apparent that under ordinary attaching means without other provision, the book when opened atA a pointv which disposes the greater portion of the leaves to one side of the line of opening will impose upon the connection a lifting strain which Will prevent a flat opening of the leaves of the book regardless of any means by which the leaves are arranged for flat opening in the book if notconnected. In order, therefore, to provide for a convenient and simple means for connecting successive calendar books with the same backing and compensate for the accumulation of thickness of leaves to one side of the line of connection in the opening of the calendar book, the calendar backing 1 is formed within the area occupied by the book and to one side of the center line of such area With a flexible section 3. This flexiblev section 3 is formed by dividing the backing vertically on the line indicated at 4, which extends coincidentally with the position occupied by the rear edge of the calendar book, this line of cut 4 being preferably somewhat less in length than the similar dimension of the calendar book. The line of cut 4 is extended laterally by upper and lower parallel incisions 5 and 6 which extend for an appreciable distance beyond the line of cut 4, say for approximately one-half the width of the calendar book.

An adhesive strip '7 is fixed to the free edge and preferably the lower side of the flexible section 3, this strip extending beyond the free edge of the flexible section and being designed to be secured to the uppermost surface of the calendar book when the latter is positioned on the backing with its bound edge in the line of cut a and the book arranged on the backing in a direction opposite that of the incisions 5 and 6.5 ,'I'hus the book is connected to the .backing solely by the adllesive strip and flexible section, and When the book is opened at such point that the leaves to the left of the line of cut 4, i. e. in a direction away from the fle le section, are equalto or less in number than the leaves overlying the flexible section, the latter remains substantially in the plane of the backing, forfl; under these conditions 'there is no elevating eleinent on that portion of the adhesive strip 7 which connected to the flexible strip. As the leaves to the left of the flexible section begin to exceed the number of the leaves to the rightii` the calendar book is successively opened, a continued elevating strain is placed upon the adhesive strip 7 in order that such adhesive strip may assume a position permitting a flat opening of the leaves. 'j

When the leaves to the left of the flexible section 3 are largely in excess of the number of leaves to the right as, for example, when the calendar data near the endV of the book is being reached by being displaced, there is a very ina-3; terial lifting strain on the adhesive strip 7 and if this strain is not compensated for, it will obviously retard a flat opening of the leaves throughout this final number because it will continualiy lower the line of opening with re-i spect to the plane of the lleaves exposed and,

i therefore, the meeting edges of these leaves will be depressed below the surface of the leaves and the leaves cannot openflat.

Under these circumstances and in compensating for the strain, the free edge of the flexible section 3 yields upwardly and thus the line of connection betweenV the flexible section 3 and the adhesive strip 'Z is maintained substantially at all times in the line of opening of the particular leaves. Thus, as the calendar book is opened to accumulate a greater number of leaves to the left of the free edge of the flexible section, the section as each successive leaf is turned is gradually raised to maintain the juncture betweenv the free edge of the section and the'adhesive strip 'TI in the line of opening. Thus, the line of opening of the leaves of the calendar book is constantly shifted in the accumulation of leaves to the left of the line of fold so as toV maintain the line of opening substantially coincident with the plane of the particular sheet being opened. Necessarily, therefore, the sheets when opened present their leaves in the same flat plane. I V

The Compensation of the flexible section 3 is automatic and progressive as the leaves are turned, until at the turning of the nal. leaf the free edge of the flexible section and the juncture of the adhesive strip 7 therewith is subv stantially in the plane of the surface of the final leaf. Following the use of a particular calendar book, the latter is detached from its section of the adhesive strip '7 and a succeeding book applied to such strip in the same manner as the preceding book. Thus, the backing becomes useful with succeeding books and under any and all conditions automatically compensates for the opening of the leaves of the book to permit a flat opening at any desirable or particular point.

In Figure 4, there is shown a slight modification wherein the movable backing section in contradistinction to the preferred form, wherein such section is provided by suitably cutting the backing, is provided as an independent element and permanently secured at one edge to the backing, with the remaining edges free of the backing and with one of such edges providing the means for securing the book in place. In this modification, the backing, here indicated at 9, is of unbroken form and otherwise made in any conventional or desired manner. A section 10 is secured at one edge 11 to the backing to provide a permanent juncture between such section and the backing along this edge. The remaining edges 12, 13 and 14 of the section 10 are wholly free of any connection with the backing, the edge 13 being opposite the edge 11 and being utilized to receive the securing strip 15, similarl to the strip 7 in the preferred form, which strip'projects beyond the edge and provides a means for Securing the book calendar 16 in place. This form of the device acts in function similar to the preferred form, as will be clear without further detailed description.

If desired, and as preferred, a movable strip 8 may be provided to overlie the upper edges of the leaves when opened to prevent accidental disturbance of the leaves and maintain the calendar book at lany desired open position.

The invention herein described is directed primarily to the formation of the backing and is not concerned with the specific mode of attachment of the calendar book or of the formation of the book itself, and while it is preferred that the calendar book be formed to permit the flat opening of the leaves in the book per se and the mode of attachment of the book be conventionally the adhesive strip '7, these particular details are of no importance in the present invention so long as the book is capable of opening in the manner described and the mode of attachment is one permitting the substitution of successive books.

An important and particularly desirable result secured through the type of calendar described is that the book calendar is in complete book form and is in the preferred form adapted not only for calendar uses but for receiving appropriate data and-memoranda throughout the period for which the calendar is provided. This book, when the calendar period for which it is designed'has passed, may by severance of the binding strip by which the book is secured to the movable section of the backing beremoved as a book and preserved in order to preserve the memoranda or data accumulated from time to time therein. The book when removed is, of course, complete in itself as a book and any data present therein may be readily consulted at any time and may, of course, be indefinitely preserved.

I claim:-

1. A calendar including a backing, a calendar book having the inherent characteristic of flat opening leaves, an adhesive strip uniting the book and backing, and a flexible section formed in the backing to which the adhesive strip is connected, said flexible section being formed by dividing the backing on a line coincident with the bound edge of the book when applied, and upper and lower lines extending in a similar direction from said first mentioned lines.

2. A calendar book backing having a flexible section forming the sole connection between the book and backing, said section being formed by cutting the backing on angularly related lines to free a portion of the backing for yielding movement toward and from the normal surface of the backing.

3. A calendar including a calendar backing, a calendar book, and a strip overlying the backing and secured at one edge to the backing, the strip being arranged wholly within the outline of the backing, the remaining edges of the strip being free from the backing, and a connection between one of said free edges and the book, the strip being movable beyond that part connected to the backing in the opening of the calendar book to compensate for the accumulation of leaves at one side of the connection between the strip and book.

4. A calendar including a relatively flat backing, a calendar book wholly independent of the backing, an element arranged wholly within the outline of the backing and secured to the backing adjacent one edge, the elements being otherwise free of connection with the backing, and means for connecting the calendar book to and supporting it from said element, the element being movable beyond that part connected to the backing in the opening of the calendar book to compensate for the accumulation of leaves at one side of the connection between the element and calendar book.

5. A calendar including a relatively fiat calendar backing, a calendar book, and means for flexibly connecting the book and backing wholly within the outline of the backing, said means increasingly spacing the line of fold of the book from the backing as the leaves of the book accumulate on one side of said line of fold.

` 6. A calendar including a relatively flat calendar backing, a calendar book, an element arranged wholly within the outline of the backing and flexibly connecting the book to the backing, the flexing of the element being outward from the backing to thereby continually vary the line of fold of the book relative to the backing as the leaves of the book accumulate on one side of such line of fold.

7. A calendar including a relatively flat calendar backing, an element secured to the backing within the outline thereof and having a free portion capable of movement outwardly from the backing beyond the connection between the element and backing, and means for Securing the calendar book to said free portion, the permissible movement of the free portion continually varying the line of fold of the book in its spacing from the backing under the accumulation of the leaves of the book to one side of such line of fold.

8. A calendar including a relatively fiat backing, a calendar book, an element carried by and within the outline of the backing and having a portion arranged for free movement relative to the backing, means for connecting the back of the calendar book to such free portion, the free portion of the element permitting the line of fold of the book to move relative to the backing in compensation for leaf accumulation at one side of the line of fold of the book.

HUGH FRANKLIN SI-IEDD. [L. 5.] 

